* WHAT...Freezing rain and freezing drizzle. Additional ice accumulations of up to one tenth of an inch are expected.

* WHERE...Portions of central and east central Missouri and south central and southwest Illinois.

* WHEN...Until noon CST Thursday.

* ADDITIONAL DETAILS...The ice will result in difficult travel conditions, including during the morning commute on Thursday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of freezing rain orfreezing drizzle will cause travel difficulties. Be prepared forslippery roads. Slow down and use caution while driving. InIllinois, call 1-800-452-4368 for road information. In Missouri,call 1-888-275-6636 for road information.

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Providing "weather, water cycle, and climate forecasts and warnings for the United States, its territories, adjacent waters and ocean areas, for the protection of life and property and the enhancement of the national economy."